For reference, a 64-bit installation will look like this:

[code]
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
[/code]

OK, thanks, this machine indeed did have a 32 bit OS installed.

So I added this line to worktodo.txt:

[CODE]Pminus1=N/A,1,2,22351237,-1,400000,9000000,134107423,1564586591,3889115239,6403852912871,55203442762393[/CODE]

Which results in:
[CODE]
[Work thread Mar 21 19:47] Insufficient memory to ever run stage 2.[/CODE]

Immediately followed by the same result it produced the previous time it worked on this exponent, including the previous B1,B2 settings.

There is plenty of memory to run P-1 on this exponent with this B1/B2 setting.

Any comments?

[QUOTE=tha;482995]Any comments?[/QUOTE]

How much memory can be addressed by a 32 bit OS?

Anywhere from <2GB to <4GB depending on the OS and application.

In Options/CPU you tell prime95 how much memory it can use

[QUOTE=Prime95;483001]In Options/CPU you tell prime95 how much memory it can use[/QUOTE]

Does Prime95 detect how much memory is available?

Thrashing is a pain.

[QUOTE=chalsall;483003]Does Prime95 detect how much memory is available?.[/QUOTE]

Yes. Setting available memory to more than 90% (I think, I need to look at the code) of physical memory cannot be done from the Windows GUI or mprime menus.

[QUOTE=Prime95;483005]Setting available memory to more than 90% (I think, I need to look at the code) of physical memory cannot be done from the Windows GUI or mprime menus.[/QUOTE]

Fuck me.

[QUOTE=chalsall;483006]Fuck me.[/QUOTE]
What is the problem?

[QUOTE=kladner;483010]What is the problem?[/QUOTE]

Perhaps a lack of medication?

[QUOTE=VBCurtis;483012]Perhaps a lack of medication?[/QUOTE]

You guys have no sense of homour.